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Commitments and Contingencies (Details 2) (USD $) In Millions, unless otherwise specified	0 Months Ended		12 Months Ended						0 Months Ended	1 Months Ended			12 Months Ended				5 Months Ended		1 Months Ended
	Aug. 10, 2012 Litigation Deutsche Bank	Feb. 25, 2013 Litigation CRNF	Dec. 31, 2012 Litigation CRNF	Dec. 31, 2011 Litigation CRNF	Dec. 31, 2010 Litigation CRNF	Dec. 31, 2009 Litigation CRNF	Dec. 31, 2008 Litigation CRNF	Dec. 31, 2007 Litigation CRNF	Jun. 21, 2012 Goldman Sachs Tender Offer Dispute	Jun. 30, 2010 Flood, Crude Oil Discharge and Insurance	Oct. 31, 2009 Flood, Crude Oil Discharge and Insurance plaintiff	May 31, 2008 Flood, Crude Oil Discharge and Insurance claimant	Dec. 31, 2013 Flood, Crude Oil Discharge and Insurance plaintiff	Oct. 25, 2010 Flood, Crude Oil Discharge and Insurance	Jul. 02, 2013 Flood, Crude Oil Discharge and Insurance CRRM	Apr. 19, 2013 Flood, Crude Oil Discharge and Insurance CRRM	Jul. 31, 2009 Oklahoma Litigation CRRM lawsuit	Jul. 31, 2009 New Mexico Litigation CRRM lawsuit	May 31, 2010 Oklahoma and Kansas Litigation CRRM lawsuit
Long-term commitments
Number of lawsuits filed																	15	2	2
Aggregate amount of claims	$ 18.5								$ 18.5	$ 3.2	$ 3.2	$ 4.4
Property tax abatement period								10 years
Increase in property tax expenses			11.3	11.4	11.7	10.7	10.7
Decrease in property tax expenses		10.7
Tax exemption period		10 years
Number of private claimants												16
Number of additional plaintiffs											3
Number of claims not settled													1
Reimbursement of oversight cost														1.8
Environmental civil penalty for CWA violations																0.6
Amount of reimbursement agreed for oversight cost																1.7
Environmental civil penalty for Risk Management Program violations															0.3
Insurance proceeds under primary environmental liability insurance policy													$ 25.0

X

- Definition

Represents the environmental civil penalty for the Clean Water Act violations.

+ References

No definition available.

+ Details

Name:	cvi_EnvironmentalLossContingenciesCivilPenaltyForCleanWaterActViolations
Namespace Prefix:	cvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Represents the environmental civil penalty related to Risk Management Program settlement agreement.

+ References

No definition available.

+ Details

Name:	cvi_EnvironmentalLossContingenciesCivilPenaltyRelatedToRiskManagementProgramSettlementAgreement
Namespace Prefix:	cvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Represents the decrease in property tax expenses due to reassessment of the nitrogen fertilizer plant.

+ References

No definition available.

+ Details

Name:	cvi_LossContingenciesDecreaseInPropertyTaxExpenses
Namespace Prefix:	cvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Represents the increase in property tax expenses due to reassessment of property.

+ References

No definition available.

+ Details

Name:	cvi_LossContingenciesIncreaseInPropertyTaxExpenses
Namespace Prefix:	cvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents the number of private claimants for notice of claims.

+ References

No definition available.

+ Details

Name:	cvi_LossContingenciesNumberOfPrivateClaimants
Namespace Prefix:	cvi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the period for property tax abatement.

+ References

No definition available.

+ Details

Name:	cvi_LossContingenciesPropertyTaxAbatementPeriod
Namespace Prefix:	cvi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the number of additional plaintiffs.

+ References

No definition available.

+ Details

Name:	cvi_LossContingencyNumberOfAdditionalPlaintiffs
Namespace Prefix:	cvi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the number of claims not settled.

+ References

No definition available.

+ Details

Name:	cvi_LossContingencyNumberOfClaimsNotSettled
Namespace Prefix:	cvi_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the approximate oversight cost reimbursement the EPA is seeking.

+ References

No definition available.

+ Details

Name:	cvi_LossContingencyOversightCostReimbursement
Namespace Prefix:	cvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Represents the amount of reimbursement paid by the entity for oversight cost to resolve the legal matter.

+ References

No definition available.

+ Details

Name:	cvi_LossContingencyReimbursementPaidforOversightCost
Namespace Prefix:	cvi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Loss Contingency, Tax Exemption Period

+ References

No definition available.

+ Details

Name:	cvi_LossContingencyTaxExemptionPeriod
Namespace Prefix:	cvi_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_LongTermPurchaseCommitmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 9

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The total number of new claims filed pertaining to a loss contingency during the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

-Paragraph 4

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The cash inflow from the amounts received by the insured under the terms of an insurance contract settlement. This element pertains only to insurance proceeds related to operating activities. It excludes insurance settlements classified as investing cash flows, for example, insurance settlements related to fixed assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 16

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3337-108585

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration